Base | Representation |
---|---|
bin | 101010000010… |
… | …0111100000000 |
3 | 1112110202122011 |
4 | 1110010330000 |
5 | 21120242240 |
6 | 2104222304 |
7 | 355224331 |
oct | 124047400 |
9 | 45422564 |
10 | 22040320 |
11 | 11494245 |
12 | 746a994 |
13 | 4749013 |
14 | 2cda288 |
15 | 1e056ea |
hex | 1504f00 |
22040320 has 72 divisors (see below), whose sum is σ = 53789904. Its totient is φ = 8650752.
The previous prime is 22040303. The next prime is 22040353. The reversal of 22040320 is 2304022.
It is a self number, because there is not a number n which added to its sum of digits gives 22040320.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85632 + ... + 85888.
It is an arithmetic number, because the mean of its divisors is an integer number (747082).
Almost surely, 222040320 is an apocalyptic number.
22040320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 22040320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26894952).
22040320 is an abundant number, since it is smaller than the sum of its proper divisors (31749584).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
22040320 is an equidigital number, since it uses as much as digits as its factorization.
22040320 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 345 (or 331 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 13.
The square root of 22040320 is about 4694.7119187443. The cubic root of 22040320 is about 280.3750077270.
Adding to 22040320 its reverse (2304022), we get a palindrome (24344342).
The spelling of 22040320 in words is "twenty-two million, forty thousand, three hundred twenty".
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